Pregunta
Identify the advantage of recovery an image copy of a datafile during RMAN backup. (Choose all that apply.)
A. During media recovery, fewer incremental updates need to be applied to the last image copy.
B. The overhead for the block change tracking file is minimal.
C. You do not need to perform additional image copy backups.
D. You no longer need to duplex your backups.
E. The time required to perform the backup and incremental updates to the image copy is reduced.
Answer: A, C

Pregunta2.
After you unregister a database from a recovery catalog, what happens to the backup metadata in the
recovery catalog?
A. You must migrate the backup metadata from the recovery catalog to the control file before
unregistering the database from the recovery catalog.
B. The backup metadata is maintained in the control file for a number of days specified by the initialization
parameter CONTROL_FILE_RECORD_KEEP_TIME and immediately removed from the recovery
catalog.
C. The backup metadata is retained in the control file, and the database structure metadata remains in the
recovery catalog.
D. The backup metadata is maintained in the control file and in the recovery catalog for a number of days
specified by the initialization parameter CONTROL FILE RECORD KEEP TIME.
Answer: B